// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_LOADER_SYNC_RESOURCE_HANDLER_H_
#define CONTENT_BROWSER_LOADER_SYNC_RESOURCE_HANDLER_H_

#include <stdint.h>

#include <string>

#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/browser/loader/resource_handler.h"
#include "content/public/common/resource_response.h"

namespace net {
class IOBuffer;
class URLRequest;
}

namespace content {

// Used to complete a synchronous resource request in response to resource load
// events from the resource dispatcher host.
class SyncResourceHandler : public ResourceHandler {
public:
    using SyncLoadResultCallback = ResourceDispatcherHostImpl::SyncLoadResultCallback;

    SyncResourceHandler(net::URLRequest* request,
        const SyncLoadResultCallback& sync_result_handler,
        ResourceDispatcherHostImpl* resource_dispatcher_host);
    ~SyncResourceHandler() override;

    bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
        ResourceResponse* response,
        bool* defer) override;
    bool OnResponseStarted(ResourceResponse* response, bool* defer) override;
    bool OnWillStart(const GURL& url, bool* defer) override;
    bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
        int* buf_size,
        int min_size) override;
    bool OnReadCompleted(int bytes_read, bool* defer) override;
    void OnResponseCompleted(const net::URLRequestStatus& status,
        bool* defer) override;
    void OnDataDownloaded(int bytes_downloaded) override;

private:
    enum { kReadBufSize = 3840 };

    scoped_refptr<net::IOBuffer> read_buffer_;

    SyncLoadResult result_;
    SyncLoadResultCallback result_handler_;
    ResourceDispatcherHostImpl* rdh_;
    int64_t total_transfer_size_;
};

} // namespace content

#endif // CONTENT_BROWSER_LOADER_SYNC_RESOURCE_HANDLER_H_
